Apparatus and method for controlling engine

Details Apparatus and method for controlling engine Apparatus and method for controlling engine

2009-05-22

2011-11-01

Vo, Hieu T (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S295000

Reexamination Certificate

active

08050846

ABSTRACT:
An engine controller capable of reducing torque fluctuation and the like in change between spark ignition combustion and homogeneous charge compression ignition combustion is provided. Spark ignition burning mode or homogeneous charge compression ignition burning mode is selectively set as burning mode according to the operating state of an engine. In spark ignition burning mode, a spark plug is used. In homogeneous charge compression ignition burning mode, fuel is burned utilizing pressure rise in a combustion chamber in conjunction with the ascent of a piston. The burning mode is changed between these modes. In transition for change between the spark ignition burning mode and the homogeneous charge compression ignition burning mode, the following measure is taken: a period during which the lift amount and/or the valve opening period (IVevent) of an intake valve is made smaller than a set value for the homogeneous charge compression ignition burning mode is provided.

REFERENCES:
patent: 7540270 (2009-06-01), Kang et al.
patent: 7689344 (2010-03-01), Kang et al.
patent: 7822529 (2010-10-01), Dagci et al.
patent: 2003-148180 (2003-05-01), None
patent: 2009-243295 (2009-10-01), None
Japanese Office Action dated Aug. 31, 2010 (Two (2) pages).

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